Heitmann & Associates Inc. has hired Dennis Dueing as an architectural consultant and Colin Long as a drafting technician.

Dueing has significant building enclosure field experience and holds a bachelor’s degree in architecture from Drury University. He has worked as an architect in the St. Louis area for many years, according to a release from Heitmann.

Colin is a recent graduate of ITT Technical Institute with a special emphasis in computer-aided drafting and design technology.